My Inquiry
My Account
Toshiba Semiconductor and Storage TB62218AFNG,C8,EL
- Part No.:
- TB62218AFNG,C8,EL
- Manufacturer:
- Toshiba Semiconductor and Storage
- Category:
- Motor Drivers, Controllers
- Package:
- 48-TFSOP (0.240", 6.10mm Width) Exposed Pad
- Datasheet:
-
TB62218AFNG,C8,EL.pdf
- Description:
- IC MOTOR DRIVER BIPOLAR 48HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:856
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TB62218AFNG from Toshiba is a BiCD monolithic two-phase bipolar stepping motor driver IC with PWM constant-current chopper control, rated for 40 V/2.0 A per phase, featuring integrated thermal shutdown (TSD), overcurrent shutdown (ISD), and power-on reset (PORS) - used in precision motion control systems such as industrial automation actuators, CNC positioning stages, and medical infusion pump drives.
For engineers reviewing the TB62218AFNG datasheet, TB62218AFNG pinout, TB62218AFNG application, or TB62218AFNG equivalent, this page delivers verified technical context on mixed-decay PWM operation, HTSSOP48 package layout constraints, current-setting via VREF/RS resistor network, and real-world excitation mode compatibility (two-phase, 1-2-phase, W1-2-phase).
Technical Context
The TB62218AFNG implements a dual H-bridge output stage using DMOS FETs fabricated in Toshiba's BiCD process, enabling 40 V/2.0 A absolute maximum ratings with 1.0 Ω typical total ON-resistance (upper + lower) per bridge. Its internal CR oscillator sets chopper frequency between 40–150 kHz, with fixed 37.5% mixed-decay timing for precise current regulation.
Control logic accepts PHASE_A/PHASE_B direction signals and IN_A1/IN_A2/IN_B1/IN_B2 excitation inputs to support three drive modes: two-phase (full-step), 1-2-phase (half-step), and W1-2-phase (microstep-like waveform shaping). Current sensing occurs across dedicated RS_A1/RS_A2 and RS_B1/RS_B2 pins referenced to VM, with VREF_A/VREF_B tuning peak current per phase via IOUT = (VREF/5) ÷ RRS.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Output Voltage | 40 V - supports stepper motors with up to 38 V nominal supply (VM operating range) |
| Max Output Current | 2.0 A per phase - absolute rating; recommended ≤1.4 A continuous due to thermal limits |
| Chopper Frequency | 40–150 kHz - adjustable via external CR network; default 100 kHz at 1600 kHz OSCM clock |
| VREF Decay Rate | 1/5.0 (typ.) - defines current scaling factor: IOUT = VREF × 0.2 ÷ RRS |
| TSD Threshold | 150°C (typ.) - junction temperature trip point; outputs latch off until STANDBY toggle or reboot |
| ISD Trip Threshold | 3.0 A (typ.) - per-phase overcurrent detection with 4-cycle masking against switching noise |
| Logic Supply | VCC = 5.0 V ±2.5% - internally regulated from VM; powers input logic and oscillator |
Pinout & Package
Package: HTSSOP48-P-300-0.50 (48-pin thermally enhanced thin shrink small outline package, 0.50 mm pitch, 300 mil body width, 0.21 g typical weight).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT_A1 / OUT_A2 / OUT_B1 / OUT_B2 | H-bridge driver outputs | Four dedicated motor coil terminals - each pair forms one phase's high-side/low-side drive path |
| RS_A1 / RS_A2 / RS_B1 / RS_B2 | Current-sense return | Sink-side sense pins tied to external shunt resistors; voltage drop measured vs. VM to regulate current |
| VREF_A / VREF_B | Reference voltage input | Analog inputs setting peak current per phase: IOUT = (VREF/5) ÷ RRS |
| PHASE_A / PHASE_B | Direction control | Digital inputs selecting current polarity per phase - determines motor rotation direction |
| IN_A1 / IN_A2 / IN_B1 / IN_B2 | Excitation control | Logic-level inputs defining step sequence state (e.g., two-phase, 1-2-phase, W1-2-phase) |
| STANDBY (BY_STAND) | Global enable | Active-high signal disabling oscillator and all outputs - reduces quiescent current to 2 mA |
| OSCM | Oscillator timing | External RC node (C=270 pF, R=3.6 kΩ typical) setting chopper frequency base clock |
| VM / VCC / GND | Power domains | VM (motor supply, up to 40 V), VCC (logic regulator input), and three GND types: logic (pins 11, 46), motor (pins 20, 24, 25, 29) |
Key Features
| Feature | Design Value |
|---|---|
| Mixed-decay PWM control | Fixed 37.5% fast-decay / 62.5% slow-decay ratio per chopper cycle - balances torque ripple and heat generation |
| Dual independent current regulation | VREF_A and VREF_B allow asymmetric current tuning per phase - enables advanced microstepping waveforms |
| Integrated protection suite | Thermal shutdown (TSD), overcurrent shutdown (ISD), and power-on reset (PORS) - all latching until STANDBY toggled |
| BiCD process DMOS outputs | High-voltage (40 V) and high-current (2.0 A) capability with 1.0 Ω typical RDS(on) per H-bridge leg |
| Multi-mode excitation support | Hardware-configurable two-phase, 1-2-phase, and W1-2-phase sequences - no external sequencer required |
Applications
| Industrial CNC Positioning | Medical Infusion Pumps |
|---|---|
Use Scenario: Precise open-loop positioning of linear actuators in CNC milling machines and pick-and-place robots. IC Role / Device Role / Timing Role: Two-phase bipolar stepper driver delivering 1.4 A/phase at 24 V with sub-millisecond step response and mixed-decay current stability. Use Value: Eliminates need for external current-sense amplifiers and decay control logic - reduces BOM count by ≥4 components per axis. | Use Scenario: Controlled volumetric delivery in hospital-grade IV pumps requiring silent, jitter-free motor operation. IC Role / Device Role / Timing Role: W1-2-phase excitation mode generating smooth 71%/38% current steps - minimizes audible motor whine and mechanical resonance. Use Value: Achieves <±5% current matching between phases (ΔIOUT1 ≤ ±5%) - critical for consistent flow rate accuracy across duty cycles. |
| Automated Test Equipment (ATE) | Printed Circuit Board (PCB) Drilling Systems |
Use Scenario: High-speed indexing of test probes and fixture actuators in semiconductor final test handlers. IC Role / Device Role / Timing Role: 1-2-phase half-step mode enabling 2× resolution vs. full-step; supports 400 kHz max phase frequency (fPHASE). Use Value: Delivers 100 ns minimum pulse width (tPHASE) - allows ≤2.5 µs step intervals for rapid position settling. | Use Scenario: Z-axis depth control and XY gantry movement in PCB micro-drilling machines with 10 µm positional tolerance. IC Role / Device Role / Timing Role: Dual H-bridge driver with independent VREF_A/VREF_B tuning - compensates for coil resistance mismatch between X/Y axes. Use Value: Maintains ≤5% inter-channel current differential (ΔIOUT1) - ensures synchronized torque delivery across dual-axis motion profiles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bipolar stepper motor driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STK672-430 | Higher 50 V/3.0 A rating; integrated current DAC; requires external VREF generator | Supports 1/16 microstepping via SPI interface - not available on TB62218AFNG | Choose when digital microstepping control and higher voltage headroom are required; adds SPI interface complexity |
| DRV8825 | Lower 45 V/2.2 A rating; built-in indexer; 1/32 microstepping; uses single VREF pin for both phases | Onboard step/direction logic eliminates need for external sequencer - unlike TB62218AFNG's direct excitation inputs | Choose when simplifying controller firmware is prioritized over independent phase current tuning |
Compared with STK672-430 and DRV8825, the TB62218AFNG offers hardware-selectable excitation modes without serial interface overhead, independent per-phase VREF adjustment for asymmetrical torque compensation, and proven thermal robustness in continuous 1.4 A operation - making it optimal for cost-sensitive, fixed-function motion systems where analog tuning suffices.
Availability
TB62218AFNG is available at Aetrix Electronics and suitable for industrial CNC positioning, medical infusion pumps, automated test equipment (ATE), and PCB drilling systems requiring stable component supply, long-term lifecycle assurance, and traceable sourcing from authorized channels.
Supply support for TB62218AFNG includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Toshiba Electronic Devices & Storage Corporation designs high-reliability analog and power ICs for industrial, automotive, and consumer applications, with emphasis on motor control, power management, and optical devices.
The TB62218AFNG belongs to Toshiba's BiCD stepping motor driver product line, engineered specifically for cost-effective, thermally robust open-loop motion control in factory automation and precision medical equipment.
FAQ
What excitation modes does the TB62218AFNG support?
The TB62218AFNG supports three hardware-configurable excitation modes: two-phase (full-step), 1-2-phase (half-step), and W1-2-phase (asymmetric waveform shaping). These are selected via combinations of IN_A1/IN_A2/IN_B1/IN_B2 and PHASE_A/PHASE_B inputs as defined in the Output Function Table. No external sequencer or microcontroller firmware is needed - all sequencing is handled internally by the TB62218AFNG logic block.
How is output current set on the TB62218AFNG?
Output current on the TB62218AFNG is set per phase using the formula IOUT = (VREF/5) ÷ RRS, where VREF is applied to VREF_A or VREF_B (3.6 V max), and RRS is the external current-sense resistor connected between RS_X1/RS_X2 and the motor coil return. The 1/5.0 decay rate is fixed; typical VREF = 3.0 V with RRS = 0.75 Ω yields 0.8 A per phase. The TB62218AFNG measures voltage drop across RRS relative to VM to regulate current.
What protection features are built into the TB62218AFNG?
The TB62218AFNG integrates thermal shutdown (TSD), overcurrent shutdown (ISD), and power-on reset (PORS). TSD disables outputs at 150°C junction temperature; ISD trips at 3.0 A per phase with 4-cycle noise masking; PORS holds outputs off until VM and VCC reach valid thresholds. All protections are latching - recovery requires toggling the STANDBY pin or power cycling. These functions operate independently per phase for ISD and globally for TSD/PORS.
What is the purpose of the OSCM pin on the TB62218AFNG?
The OSCM pin on the TB62218AFNG connects to an external RC network (typically 270 pF capacitor and 3.6 kΩ resistor) that sets the base oscillator frequency for the internal chopper circuit. This frequency determines PWM switching rate (40–150 kHz range) and governs mixed-decay timing, blanking intervals, and ISD masking duration. The OSCM signal is internally divided to generate the CR_CLK used for current regulation - making it fundamental to stable constant-current operation of the TB62218AFNG.
Can the TB62218AFNG drive unipolar stepper motors?
No, the TB62218AFNG is designed exclusively for two-phase bipolar stepper motors. Its dual H-bridge architecture requires four-wire bipolar coils (A+, A−, B+, B−) and cannot interface with the center-tapped windings of unipolar motors. Attempting to connect a unipolar motor would result in incorrect current paths, potential device damage due to improper grounding, and failure to achieve intended torque or step resolution. Use only with confirmed bipolar stepper motors rated ≤40 V and ≤2.0 A per phase.
TB62218AFNG,C8,EL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Toshiba Semiconductor and Storage
- Series:
- -
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width) Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Motor Type - Stepper:
- Bipolar
- Motor Type - AC, DC:
- -
- Function:
- Driver - Fully Integrated, Control and Power Stage
- Output Configuration:
- Half Bridge (4)
- Interface:
- Parallel
- Technology:
- DMOS
- Step Resolution:
- 1, 1/2, 1/4
- Applications:
- General Purpose
- Current - Output:
- 2A
- Voltage - Supply:
- 4.75V ~ 5.25V
- Voltage - Load:
- 10V ~ 38V
- Operating Temperature:
- -20°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 48-HTSSOP
TB62218AFNG,C8,EL FAQ
1.How can I place an order for TB62218AFNG,C8,EL through Aetrix?
Please submit a Request for Quotation (RFQ) for TB62218AFNG,C8,EL on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TB62218AFNG,C8,EL reliable?
The price and inventory of TB62218AFNG,C8,EL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TB62218AFNG,C8,EL is usually 5 days.
3.What payment methods are accepted for TB62218AFNG,C8,EL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TB62218AFNG,C8,EL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TB62218AFNG,C8,EL?
TB62218AFNG,C8,EL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TB62218AFNG,C8,EL order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TB62218AFNG,C8,EL?
For technical support, including TB62218AFNG,C8,EL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TB62218AFNG,C8,EL requirements.
6.How does Aetrix verify that TB62218AFNG,C8,EL is sourced from the original manufacturer or authorized distributors?
All TB62218AFNG,C8,EL products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TB62218AFNG,C8,EL meets industry standards.
7.What is the process for return or replacement of TB62218AFNG,C8,EL?
All TB62218AFNG,C8,EL units undergo pre-shipment inspection (PSI). If there is an issue with TB62218AFNG,C8,EL, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TB62218AFNG,C8,EL part is unused and in its original packaging.
Return procedure for TB62218AFNG,C8,EL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TB62218AFNG,C8,EL Tags
-
DRV2603RUNR
Texas Instruments
-
DRV8837CDSGR
Texas Instruments
-
DRV8837DSGR
Texas Instruments
-
DRV8838DSGR
Texas Instruments
-
DRV8839DSSR
Texas Instruments
-
EMC2301-1-ACZL-TR
Microchip Technology
-
DRV8231ADSGR
Texas Instruments
-
EMC2302-2-AIZL-TR
Microchip Technology
-
DRV8800PWPR
Texas Instruments
-
DRV8835DSSR
Texas Instruments
-
EMC2303-1-KP-TR
Microchip Technology
-
DRV8876PWPR
Texas Instruments
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
